AA Lamps

Lamp AAS Deuterium (D2) arc lamp to suit Varian Spectros

Deuterium lamps are discharge light sources that utilise the stable arc discharge of deuterium gas (D2). The spectral distribution of this arc is mainly in the ultra violet (UV) range.

The Deuterium lamp contains 6 essential components:

Five pin base:

The five-pin base design enables the internal components to be mounted securely and also provides an unparalleled vacuum seal with the envelope.

Filament (Hot cathode):

The horizontally positioned tungsten filament reduces internal noise produced by mechanical vibration. This also avoids the degradation of the emission cathode, which can cause premature lamp failure.

Box structure: The box structure is made of high purity nickel, to ensure a uniform discharge only occurs between anode and cathode. This proven box structure, gives consistent reproducibility, and warm up characteristics.

Aperture:

A highly polished aperture enhance the reflecting and focusing of the UV discharge. See intensity distribution chart.

Envelope:

Around this internal assembly is either a UV transmitting glass envelope or a quartz window envelope with a protruding nose.

Anode:

A consistently positioned anode ensures a narrow range of run volts over the deuterium lamp lifetime. It also ensures a reliable ignition of the deuterium lamp.

Lamp AAS Deuterium (D2) arc lamp to suit Varian Spectros

P706